Kodi ubwino wa guluu urea-formaldehyde ndi chiyani? | | Jsylvl

Guluu wa Urea-formaldehyde (UF) ndi mtundu wa zomatira zomwe zimagwiritsidwa ntchito popanga plywood ndi zinthu zina zopangidwa ndi matabwa. Nawa maubwino ena okhudzana ndi guluu urea-formaldehyde:
Zotsika mtengo: Guluu wa UF nthawi zambiri ndiwotsika mtengo poyerekeza ndi zomatira zina. Kutsika mtengo kumeneku kumapangitsa kukhala chisankho chodziwika bwino popanga plywood ndi zinthu zina zamatabwa zopangidwa ndi matabwa, zomwe zimathandizira kuti zitheke.

Nthawi Yochiritsa Mwachangu: Guluu wa Urea-formaldehyde nthawi zambiri amakhala ndi nthawi yochiritsa mwachangu. Izi zitha kupititsa patsogolo luso la kupanga chifukwa zimalola kukonzanso mwachangu komanso kuchepetsa nthawi yofunikira popanga plywood.

Kulimba Kwambiri kwa Bond: Guluu wa UF amapanga zomangira zolimba ndi ulusi wamatabwa, zomwe zimathandiza kuti plywood ikhale yolimba. Mphamvu yomangira yokwera imathandizira kuonetsetsa kuti zigawo za veneer mu plywood zimamatira motetezeka wina ndi mnzake, zomwe zimapangitsa kuti pakhale zinthu zokhazikika komanso zolimba.

Kukhazikika Kwamawonekedwe: Plywood yolumikizidwa ndi guluu urea-formaldehyde imakhala yokhazikika bwino. Izi zikutanthawuza kuti plywood imakhala yochepa kwambiri kugwedezeka kapena kuchepa pamene ikukumana ndi kusintha kwa kutentha ndi chinyezi, zomwe zimapangitsa kuti zinthuzo zikhale zokhazikika.

Kupezeka Kwakukulu: Guluu wa UF amapezeka kwambiri, ndipo opanga ambiri amagwiritsa ntchito popanga plywood ndi zinthu zina zopangidwa ndi matabwa. Kumasuka kwa kupezeka kumathandizira kufalikira kwa plywood ya urea-formaldehyde-bonded m'mafakitale osiyanasiyana.

Kusinthasintha: Guluu wa Urea-formaldehyde ndi wosiyanasiyana ndipo atha kugwiritsidwa ntchito ndi mitundu yosiyanasiyana yamitengo. Zimagwirizana ndi matabwa olimba komanso zofewa, zomwe zimapangitsa kuti pakhale kusinthasintha posankha zipangizo zamakono popanga plywood.

Kusinthasintha kwa Makanema Osiyanasiyana: Guluu wa UF amatha kusinthidwa kuti agwirizane ndi mikhalidwe yosiyanasiyana, ndikupangitsa kuti ikhale yoyenera pamapangidwe osiyanasiyana. Kusinthasintha kumeneku kumathandizira kusinthasintha kwake komanso kugwiritsidwa ntchito m'malo osiyanasiyana opanga.

Ndikofunikira kudziwa kuti ngakhale guluu wa urea-formaldehyde ali ndi zabwino izi, pali zovuta zina zokhudzana ndi kugwiritsidwa ntchito kwake. Chodetsa nkhawa chimodzi ndi kutulutsa kwa formaldehyde, volatile organic compound (VOC), panthawi komanso pambuyo pochiritsa. Kutulutsa kwa formaldehyde kumatha kukhala ndi zotsatira paumoyo komanso kumathandizira kuti pakhale zovuta za mpweya wamkati. Chotsatira chake, pakhala kutsindika kwakukulu pa chitukuko ndi kugwiritsa ntchito zomatira zina, monga phenol-formaldehyde kapena melamine-urea-formaldehyde, zomwe zimatulutsa milingo yochepa ya formaldehyde kapena yopangidwa kuti ikhale yopanda formaldehyde. Miyezo yoyang'anira, monga malire otulutsa mpweya wokhazikitsidwa ndi mabungwe monga California Air Resources Board (CARB), cholinga chake ndi kuthana ndi nkhawazi ndikulimbikitsa kugwiritsa ntchito zomatira zotsika utsi muzinthu zamatabwa.